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I stated trumpet to give an example. I am processing pipe organs. Pipe organs have different stops representing different sounds some emulating and therefore named after the instruments they represent. Each stop activates that sound for a rage of keys, usually around 61 keys. Each key pressed will open an airflow vent that channels wind into a pipe and sound is produced. Successive keys will generate sound from one (sometimes as many as 20+ pipes) of an array of pipes positioned across from left to right so one note sounds from a pipe to the left and the next, a pipe on the right, the next from the left and so on. Since these pipes in real life are next to each other and occupy a fairly wide space the stereo recording are used to give that sensation of the pipes' spacial distribution when played digitally. So it's not a matter of a simple left and right. Loops are needed to perpetuate the sound for
the duration of time a key is pressed even though a recorded
sample may be of just 6 seconds' duration. The software loops
the sound until the key is release. I have mentioned this
before. This video may give a bit more insight in
what is to be achieved: https://youtu.be/dsoWg38TjpU Mark On 09/12/2016 14:21, Jan Stary wrote:
On Dec 09 00:23:21, marcusfb@xxxxxxxxx wrote:The task I am now performing is basically reversing part of the process that was done to these files after loops and markers were created.... that of recombining the L and R channels back into single stereo samples preserving the processing done before the separation. Loops and markers are created in positions that apply to both channels in a stereo file so they are bound to match exactly when recombining them again.One more question: if these are samples of real instruments, how much do you need them to be stereo? For e.g. a trumpet, can you just take the "left trumpet sample" an pronounce it the stereo trumpet", just duplicating the channel? Or is there an actual difference? (There will be for pipe organs of course). But that's probably the same problem when done with SoX: you would lose the markers. Jan ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today.http://sdm.link/xeonphi _______________________________________________ Sox-users mailing list Sox-users@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/sox-users
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